Roll to roll processing of ultraconformable conducting polymer nanosheets

A. Zucca, K. Yamagishi, T. Fujie, S. Takeoka, V. Mattoli, F. Greco

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

Thin and compliant conductive materials and electronic devices that are able to stand as free-standing membranes or to conform to surfaces are relevant for the development of human-device interfaces and unperceivable skin-contact personal health monitoring systems. In this work, a roll-to-roll (R2R) process for the preparation of conductive polymer nanosheets on large areas has been developed in view to move such technology towards real-world applications. R2R conductive nanosheets are obtained as free-standing structures through release from a temporary substrate and then transferred in conformal contact with any target surface with arbitrary shape, curvature and surface topography (including biological tissue such as skin). A specific high-conductivity formulation of PEDOT:PSS has been optimized for skin-contact applications, by making use of butylene glycol (BG) as a dopant: a dermatologically approved ingredient. The R2R nanosheets were tested as unperceivable surface electromyography electrodes able to record muscle-electrical activity. The present R2R process has advantageous properties such as continuous, high throughput printing on large area rolls, cost-effectiveness, speed of execution and use of industry-ready/mass-scale manufacturing technology.

Original languageEnglish
Pages (from-to)6539-6548
Number of pages10
JournalJournal of Materials Chemistry C
Volume3
Issue number25
DOIs
Publication statusPublished - 2015 Jul 7

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

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